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forcing value to be in values

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This commit is contained in:
Sylvain Corlay 2014-10-03 23:47:48 +00:00
parent eef30e10c0
commit 54a36e7369
1 changed files with 8 additions and 4 deletions
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8
IPython/html/widgets/widget_selection.py
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@ -65,6 +65,7 @@ class _Selection(DOMWidget):
# the setting of self.values right now, before anything else runs
self.values = kwargs.pop('values')
DOMWidget.__init__(self, *args, **kwargs)
self._value_in_values()
def _values_changed(self, name, old, new):
"""Handles when the values dict has been changed.
@ -76,10 +77,13 @@ class _Selection(DOMWidget):
self.value_names = list(new.keys())
finally:
self._in_values_changed = False
self._value_in_values()
def _value_in_values(self):
# ensure that the chosen value is one of the choices
if self.value not in new.values():
self.value = next(iter(new.values()))
if self.values:
if self.value not in self.values.values():
self.value = next(iter(self.values.values()))
def _value_names_changed(self, name, old, new):
if not self._in_values_changed: